code: def mechanism(cls) -> str:
      return "rdp"
  
file_path: opacus/opacus/accountants/rdp.py
imports: from typing import List, Optional, Tuple, Union
  from .accountant import IAccountant
  from .analysis import rdp
label_desc: Use image node_id 6 for calling the RDPAccountant obj's underlying member method code with example usage: obj.mechanism(cls) and returns: str